Integrating linkage



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March25,1947. QSBMKLEY' mama INTEGRATING LINKAGE Original Filgd April 1, 1941 3 Sheets-Sheet 3 IN V EN TOR.

M65 A5 INGKZZLEX swam} fZZi M B 17am Patented Mar. 25, 1947 UNITED STATES TNT OFHC INTEGRATING- LINKAGE George S. Binckley, deceased, late of Los Angeles, Calif., by Sydney William Binckley, executor,

Los Angeles, Caliil,

7 Claims. 1

This invention relates. to integratin linkage and forms a divisional of the copending application of George Binckley, deceased, filed April 1, 1941', Serial No. 386.229, for Fluid meters.

Specifically, the present invention has for an object theprovision of linkage adapted to integrate for meter purposes two variables. It is ordinary practice to record on a chart two separate lines indicating differential pressure and static pressure, or density and some factor, and then, by calculation, to integrate the separate line records traced by two pens over which the rate of flow of a liqu d may be determined. Such a calculating machine is costly, and requires a skilled technician, while the present invention provides an. integrating mechanismlwhich produces a single line record of the integrated value of the differential pressure and the static pressure, or the density of the liquid. 7

Another object of the invention is the provision of a device whereby various corrections which are essential to secure accurate measurement of a liquid, are automatically applied, and their values automatically integrated, thus eliminating calculations which would otherwise have to be applied.

Other objects include a device which is simpleof construction and inexpensive in cost of manufacture.

In the drawings: I

Figure I is an elevational view of one form of fluid meter shown in cooperation with a pipe line'through which a fluid or gas is passed the weight rate of flow of which is to be indicated bythemeter, V

Figure 2 is a sectional view on the line 2-2 ofFigurel, I v i I t Figure 3 is a fragmentary sectional detail of the meter incorporating. the integrating linkage and. showing means for recording the rate weight of flow of gases,

2 contracted throat through which the fluid tozb'e measured must pass, together with devices placed within the orifice or contracted throat and so functioning that when fluid is moving through said orifice or throat, therewill be a difference in pressure effect in said devices representative of the actual velocity of the flowing stream. The

Figure 4 is a plan view of means shown in Figure 3 and" looking in the direction of the arrow ii'n said figure, and

Figure 5 is an enlarged, partly sectional, de-' tail on the line.5'5 of Figure 3. a

Referring now with particularity to the'drawings, in Figure 1, at I, is shown a meter which incorporates the invention. This meter is adapted for use with liquids, whereas that form of I Figure 2. This means constitutes an. orifice or meter I is directly connected to the means 3 for indicating said diiierential pressure. Specifically, means 3 includes a casting provided with flanged ends t and 5 adaptedtomate with like flanged ends 6 and 7 on pipes 22. These flanges may be secured together in any appropriate man.- ner, such as by the: use of bolts 8' passed through.

aligned openings in the flanges and secured by nuts 9. Within the casting is acontracted throat member to. Surface H of member IE! is in the form of an elliptical curve and the approach coneis tangent to the curve. At the zone of greatest diameter is an annular external flange or foot I2 adapted to fit tightly within the confines of the casing. The opposite end portion, being the portion of minimum diameter, may be supported by an annular rib i3, formed in the casting; This annular rib is' provided with a pair of annular shoulders l4 and I5, the contracted throat being provided with an external annular flange l6 adaptedto rest on the annular shoulder M. A ring is provided. with an annular flange t8; which flange rests upon shoulder i5. This ring is adapted to be slightly spaced" from the endl9- of said throat member Hi, the spacing being indicated by 28. I The ring and the contracted throat member are held in working relationship said ring may be considered as a. part of the contracted throat member, although for convenience of construction, the device may be formed as shown in Figure 2. Within the contracted portion of member I'll-are Pitot and static tubes, to-wit, a positive tube and a static tube, V

the static tube being shown at 22, while the positive tube parallels the static tube and is indicated by the dotted linesat 23'. These tubes are of the usual construction, well known in theart, and as usual, the static tube is pointed, whil the positive tube isopen-ended. The web i3 is provided with bore 25, which i threadedly counter-bored at 25, to receive the threaded; end of pipe 25. Bore 2i is in direct communication with slit 23. When a fluid is passing through the contracted throat, the zone of negative or static pressure is in the plane of the slit 20. On the upstream or positive side of the pipe 2 is a transverse bore 21, which is threadedly counter-bored at 28 to receive the threaded end 4 tegrated value of the differential pressure and static pressure, or density, on a chart.

The meter case has a base or back wall 43, and secured thereto is a stud 5D. This stud at its of pipe 29. Upon reference to Figure 1, it will 5 outer end carries a cross piece 5|, which cross be seen that pipes 26 and 29 communicate with piece acts as a shaft frame for the integrating means 30. This means permits a measurement linkage. A shaft 52 is journaled at 53 to the of the density of liquid flow through pipe 2. cross piece and to the base at 54. A yoke 55 Reference is made to Binckley Patents 2,377,605 carries trunnions 55 and 5?, respectively, jourand 2,321,175 for further details of this structure, naled at 58 and 59 in the cross piece 5i and base Difierential pressure means is shown at 3| in Figure 1, and detailed in Figure 3. Pipes 32 and 33 directly communicate with the static and positive Pitot tubes, and lead to the means 3!. The means and 3| cooperate through integrating linkage, designated generally as 34'in Figure 3, to actuate a pen-arm over a chart and to give a single-line reading on said chart, which is representative of the weight of a liquid or fluid moving through the contracted throat Ill. The differential pressure means includes a reservoir 35 adapted to hold some liquid, such as mercury 36. The bottom of the reservoir is in communication with the tube 31, which is coiled at 38, and then provided with an extended arm portion 39 leading to an operating chamber 40, specifically adjacent the bottom of said. chamber. A second tube 4| is in communication with the operating chamber adjacent the top thereof and is curvedly bent to provide an arm portion which parallels arm portion 39, and finally coiled into a form identical with coil 33, terminating, as shown at 4|, where said tube communicates with pipe 33. Pipe 32 communicates with the reservoir 35 above the surface of the mercury therein at zone 42. This reservoir is capped, as shown. The straight portions of the tubes 39 and 4| provide elastic arms supporting the operating chamber 40 and it is the intent that mercury should not only fill the reservoir, as indicated, but should be confined in the tube 37 with the mercury received within the operating chamber at the same level as indicated at 43 as the level of the -mercury in the reservoir. The elastic arms so function as to permit the mercury to readily flow into the coil 38 when the operating chamber is raised.

There is shown in Figure 3 a Bourdon tube 44, which is used when gas is the fluid passing through the line 2. In Figure 1,'the means 30 is utilized foriliquids- Briefly stated, the means 39for measuring the v weight of'liquid constitutes two elastic tube arms, 45 and 46- which substantially parallel and-terminate in vertical coils, as indicated at 41, with tube arm 45 communicating with the interior of a bulb or chamber 48, while tube arm '45 communicates with said chamber adjacent the bot tom thereof. Pipe 29 directly communicates with tube 45 while pipe 26 is in communication with tube 46. It is evident that when liquid is flowing through pipe 2. said liquid will flow through pipe 29 into bulb 48 and back, through pipe 25, due to pressure difference. When the Bourdon tube is utilized, said ,tube either directly communi-, cates with pipe 26 or. with the static Pitottube 22, the pipe 29.being unnecessary when the fluid isgas.

The integrating linkage indicated at 34 cooperateswith either the Bourdon tube 44, or with the means 30-and with the means 3!, for the purpose of directly integrating differential pres sure and static pressure, or density, in some factor, to produce a single line record of the in- 49, The shaft 52 carries yoke 55. One of the yoke arms is provided with a stud 5! in axial alignment with the shaft 52, and said stud has secured thereto pen-arm 52. carrying a pen 63 for play over the surface of chart 54. The yoke 60 bridges the cross piece 5!, as illustrated in Figures 4 and 5.

The member 65 constitutes a screw provided with an elongated shank threaded into base 49, and carries a rotatable sleeve 63. Secured to the sleeve is' lever 61 and included between an end of said lever and an end of arm 68 is link 69. The arm 68 is secured to the end of the Bourdontube, as shown in Figure 3, and if the means 33 is used in place of the Bourdon tube, then link 69 is directly connected to the bulb 48. Fixedly secured to the sleeve is a fork constituting a pair of parallel arms l0 and I I, both of which are curvedly bent at 12. Pivotally secured to the extremities of the curvedly bent ends of the arms are links 13 and I4.

Shaft 52 has lever 15 secured thereto. Interconnecting ends of the links 13 and I4, and the end of the lever 15, is link '16. The connection of the link 16 with the two links 73 and I4 is through the medium of a pin 11. Pivotally supported by the pin 11, and included between the parallel links, is a part 18 which spaces the two links.

Carried by the yoke 55 is a cam 19. The part 18 bears against the cam face.

Secured to the trunnion 51 is a lever 80. Link '8] carries at its ends adjustable slides 82 and 83, the slide 82 being carried on lever arm 88, and

45 slide 83 on the tube 39.

In order to assure that the cam follower will at all times engage the cam face of the cam, there is provided the shaft 52, with an arm 84 carrying an adjustable weight 35. This weight normally 5'0'revolves the shaft clockwise. For clarity of illustration, this weight and arm are shown in Figure 5'only.

The operation, uses and advantages of the invention are as follows:

55' If the density bulb or chamber 43 is used, liquid'fiows'continuously through pipe 29 into the bulb or chamberand back through pipe 26 into the annular space 2% by diiierential pressure produced by liquid flow through the contracted throat. The straight portions of the tubes 45 and 46, together with the curved portions 41' shown for tube 45, and duplicated for tube 45, provide.

elastic arms adapted to yield under changes of weight of liquid which flows into and out of the bulb or chamber 48. Thus, any change in the unit weight rate or density of the liquid causes the bulb to rise or sink in direct proportion to such change. Hence, by connecting the link 69 with said bulb or chamber, said link is moved 7 each time the bulb or chamber moves, to in turn rock the lever 51 connected to the sleeve 65 which, in turn, rocks the arms l0 and H, to produce movement in the parallel links 13 and 14. Thecurvature of the cam surface is a circular arc struck from the-pivot point 86 between the arm 75, and'the; link 16, with the result that if the cam is positioned at a given point, the cam follower may follow the cam surface without in any manner rocking arm 15; Thus, the rocking-movement of'arm 15 will depend primarily upon the position of the cam.. As the cam is carried by Yoke; 55, movement of the yoke will change the position of the cam so as torender. the cam surface eccentric to pivot point 86, and when this occurs, the arm 15 will be rocked. The yoke 55 is rocked by the lever arm 80, which is secured to the trunnion 51. The lever arm 80 is in linked connection with tube 39 at 83. The two tubes 39 and 4|, and particularly the parallel portions thereof, provide a pair of resilient arms carrying the operating chamber 48. It will be observed that both of the arms constitute projections from the top of the respective coils (see Figure 4), and in such a position as to readily move under weight influence. Hence, any movement of the operating chamber will produce movement of arm 39 and movement in the connecting link 8! to rock lever arm 8!! and rotate yoke 55 to change the position of the cam. The pen-arm 62 is directly connected through stud 6i and as arm 75 is also connected to shaft 52, movement of the pen-arm is controlled by the position of the cam follower on the cam surface, and the angular position of the cam is affected by differential pressure. The integrating linkage is so arranged that the arms 10 and H are actuated by change of density, towit, change of weight of liquid flowing into and out of the bulb 48, while the cam 19 is rocked to diiferent positions by differential pressure.

In the case of the Bourdon tube 44, the tube is actuated by change in static pressure to move the link 69 and rock lever 61.

The arrangement is such that the pen-arm 62 will not move under three conditions, viz: (First) if there is no density or differential pressure in the several lines; (second) no density and a differential pressure change; and (third) density varies but there is no differential pressure. Hence, the action of two forces-differential pressure and density-are necessary, and both are interdependent with the integrating linkage so devised that, in the absence of either one of these forces, no record will be produced on the chart 64.

What is claimed is:

1. A mechanical movement for integrating two variables, including a first rotatable and a second shaft, a yoke secured to the first shaft, an arouate cam carried by said yoke, an arm fixed to the second shaft, a cam follower for movement on the arcuate cam, a link between said arm and said cam follower, a third shaft, an arm fixed thereto, and a link between said last named arm and said cam follower, rotation of said third shaft to one position placing the cam follower on the axis of the first shaft, rotation of the first shaft positioning the cam whereby movement of the third shaft produces no rotation of the sec- 0nd shaft as the cam follower moves relative to the cam.

2. A mechanical movement for integrating two variables, including a cam adapted to be moved in accordance with one of said variables, a. cam follower for movement over said cam, said cam follower being actuated in accordance with change of the other of said variables, a shaft, and means secured to said shaft and said cam follower for rocking said shaft, the degree of rocking of saidshaftindicating-the integrated valuezof the variables.

' mechanical movement for integrating two variables including a shaft to be turned by change of one of said variables, a second shaft to be turned by change in the other of said varioutput member for said movement, a cam carried by the first said shaft, a cam follower for engagement with said cam, and link connections between the camfollower, the ou put member and the second said shaft, the relationship between said cam follower and cam being such that when the cam is in one position the cam follower may move thereover without producing any movement in the output member.

4. A. mechanical movement for integrating two variables, including a cam, a cam follower for movement on the cam surface, an output memher for said movement, said cam follower adapted to be moved by any change in one of said variables, and the said cam adapted to be rocked by change in the other of said variables, said output member being controlled as to movement by the position of the cam follower on the cam surface and the angular position of the cam as affected by said other of said variables, said cam follower having independent linkages relating it to the eifects of the said one of said variables and to the output member.

5. A mechanical movement for integrating two variables, including an output member for said movement, a cam surface, a first shaft for moving said cam surface adapted to be rocked by change in. one of said variables, a'second shaft adapted to be rocked by change in the other of said variables, a lever arm secured to the output member, a lever secured to the first shaft, a cam follower for movement over the cam surface and a link connecting said. output member and cam follower; and link connections between the cam follower and the lever arm secured to the output member and the second shaft; the said cam surface being a circular arc whose center is located at the connection between the output member and the link secured thereto and to the cam follower, whereby no rocking movement is produced in the output member when the cam follower moves relative to the cam surface and there is an absence of the said other of said variables.

6. A mechanical movement for integrating two variables, including a shaft to be rocked by one force; a second shaft to be rocked by a second force; a third shaft to be rocked to produce the combined effect of the two forces and without any rocking movement of the third shaft .in the absence of eith r one of the forces; a cam secured to the second shaft, a cam follower in contact with the surface of said cam and moved by a rocking movement of the first shaft, and a connection between the cam follower and the third shaft, said third shaft being rocked in accordance with the position of the cam follower on the cam surface and the angular position of the cam.

'7. A mechanical movement for integrating two variables, including a first shaft adapted to be moved by change of one force, a second shaft adapted to be moved by change in a second force, and a third shaft to be rocked when there are two forces acting on the first and second shafts to produce the combined effect of the forces; said first shaft provided with a fork, a link pivoted to an end of said fork, a lever arm secured to the third shaft and a link pivotally mounted to said lever armand to the first link; a cam car-- SYDNEY WILLIAM BINCKIEY, Executor of the Estate of George S. Binclcley,

Deceased.

I REFERENCES CITED The following references are of record in the file of this patent: UNITED STATES PATENTS Number Name Date 2,062,110 Swartout Nov. 24, 1936 2,052,764 Harrison Sept. 1, 1936 2,093,254 Spitzglass Sept. 14, 1937 7 FOREIGN PATENTS Number Country Date 1.

' 499,339 French Dec; 15, 1919 

